The inner design high-tech waterpower device, no need for the battery, it will light up when the water flows! And it will light off immediately when the water stops, also the color of led will change with the water temperature changes

It will light up to be green when the water temperature is less than 32 degree, light up blue when the water temperature is between 33 and 41 degree.

When the temperature is between 42 and 45 degree, it will go light up to be red.

When the temperature is higher than 46 degree, it will be red flashing, be careful that is too hot.

You can tell the different temperature from the changing of the color of the led lights, therefore it is no need to turn the turning frequently. Although there is no electricity, it will light up. It is a kind of environmental product.

It won’t lose any electric though it is waterpower. The DC current is only around 3,5V, the water flows and the wires system are separated.

We applied the international Certificates for all of our products, including the CE, ROHS and so on, and we get the documents for all of these Certificates.